Apparatus for concrete building structure



Dec. 22, 1964 H. T. DUDLEY 3,162,418

APPARATUS FOR CONCRETE BUILDING STRUCTURE Filed April 10, 1961 5 Sheets-Sheet 1 INVENTOR. HOMER T DUDLEY BY WMQM ATTORNEYS Dec. 22, 1964 H. T. DUDLEY APPARATUS FOR CONCRETE BUILDING STRUCTURE;

Filed April 10. 1961 5 Sheets-Sheet 2 D 1 m 1T. 4?

wF m L ATTORNEYS Dec. 22, 1964 H. T. DUDLEY APPARATUS FOR CONCRETE BUILDING STRUCTURE Filed April 10, 1961 5 Sheets-Sheet 5 ATTORNEYS Dec. 22, 1964 H. T. DUDLEY 3,162,418

APPARATUS FOR CONCRETE BUILDING STRUCTURE I Filed April 10. 1961 5 Sheets-Sheet 4 INVENTOR. HOMER I DUDLEY ATTORNEYS Dec. 22, 1964 H. T. DUDLEY 3,162,413

APPARATUS FOR CONCRETE BUILDING STRUCTURE Filed April 10, 1961 5 Sheets-Sheet 5 I INVENTOR. HOMER T DUDLEY ATTORNEYS United States Patent 3,162,418 APIARATUS son concnnra BUILDING srnooronu Homer '1. Dudley, 2839 N. Garrison, Tulsa, (Edda. Filed Apr. it), 1% Ser. No. 101,771 1 Claim. (Cl. 248-354) This invention relates to apparatus useful in the construction of relatively large multi-story buildings.

More particularly, this invention relates to supports for beam-molds, construction joists and other forms used in the construction of re-enforced concrete buildings.

Another object of this invention is to provide apparatus for the non-nailing, quick assembly and disassembly of molds, forms and supports used in the construction of concrete floors and columns as particularly used in multi-story concrete construction.

A still further object of this invention is to provide support members for concrete construction forms which can be quickly and economically locked into position and safely held for the receipt of concrete, and after set of the concrete readily disassembled for further use.

A yet still further object of this invention is to provide support members for concrete construction forms which are non-expendable and are not weakened by use.

Heretofore wooden joists, columns and beams have been employed to give form to the construction of in tegrally connected concrete floors as typically used in multi-story building construction. These wooden members are nailed together in place and dismantled after the concrete is poured and hardened. It is a difiicult task to remove the nails from the wooden pieces in order to condition these parts for the next construction job. Further, the repeated use in which nails are inserted and then removed upon dismantling causes the wooden beams to become weak and marred, thus, to become unserviceable to sustain the pressures exerted by large and heavy quantities of concrete.

Accordingly, it is a general object of this invention to overcome the objections to prior art methods of concrete multistory building construction and provide a support system which is capable of being used many times without weakening or making the parts unserviceable yet provide sufiicient strength for the pressures exerted by large quantities of concrete.

These and other objects of this invention will become more apparent upon further reading of the specification and claims when taken in conjunction with the following illustrations of which:

FIGURE 1 is an isometric partial view of a typical construction arrangement using the apparatus described according to this invention.

FIGURE 2 is a side elevational view of the adjustable T-brace as described in this invention.

FIGURE 3 is a partial sectional view taken along the line 33 of FIGURE 2.

FIGURE 4 is a partial side elevational view partly in cross-section showing the use of the adjustable form clamping device of this invention.

FIGURE 5 is an isometric view of the adjustable form clamp system.

FIGURE 6 is a sectional view of an alternate use of the adjustable and lockable form clamping means of this invention when used in vertical wall construction.

FIGURE 7 is an end elevational view of the adjustable floor joist member as used in bridge construction methods.

FIGURE 8 is a sectional view taken along the line 8-8 of FIGURE 7.

FIGURE 9 is a sectional view taken along the line 9-9 of FIGURE 2.

Referring now to the drawings in greater detail, the numeral is used to generally indicate the adjustable "ice T-brace support of this invention. The T-brace comprises a base plate 22 to which a vertical supporting column 24 is attached. Upper support column 26 is telescopically movable with respect to support column 24. Horizontal flange member 28 is attached to upper support column 26. Angular support arms are attached between brackets 32 on the horizontal member 28 and support bracket 34 which is clamped about upper support column member 26, as shown.

Adjustable clamping of the T-brace 2&9 occurs by movement of upper supporting column 26 with respect to the lower vertical support member 24 using a ratchet-type lift mechanism. The lift mechanism includes housing member 36, shown partially broken away. Hook members 38 are formed as a part of member 36 for insertion and holding within vertical support member 24 by first passing through openings 40 and then lowering to the position as shown in FIGURE 2. Inclusive within the housing portion 36 is slide space 42 which is adapted to receive a vertical jack lift rack portion 46 includes, at its upper end, a platform member 44, as best described in FIGURES 2 and 9. The platform includes a partial circumferential recess of such dimension slightly larger than the diameter or width of the lower supporting column 24 yet the platform is buttable against column 26. A lower extension portion 47 formed as a part of lift member 36 is adapted to receive jack handle 48 which is rotatable about shaft 50. Ratchet arm 54 is adapted for interlocking engagement with the rack portion 46 which, upon-movement of the jack handle 48 downward, will raise the jack lift 44 and upper supporting column 26 therewith.

A safety catch 56 is adapted to lock the jack lift portion 46 by engagement with the teeth as shown. The catch is normally spring-loaded by spring 58 to retain a normally horizontal position although rotatable about pin 6%. The catch is movable Within a space provided at 62, all of which is formed as a part of the principal lift housing member 36.

Interiorly formed about the upper portion of support column 24 are large openings 64 and diametrically opposite thereof smaller openings 66. Corresponding openings in upper support column as are best shown and described in FIGURE 4 and which comprise a larger opening across from which is smaller opening 72. After the jack lift has been utilized to raise upper support column member 25 with respect to lower member 24, wedge members 68 are adapted to be driven or placed into the appropriate openings to maintain the fixed position during the construction operation as hereinafter described. The wedge members 68 when used with the openings in both telescopic members 24 and 26 are described herein by way of example only, as other methods of locking the two members 24 and 26 in position may be used.

FIGURE 3 is representative of a sectional view taken along the line 33 of FIGURE 2 to show the channel portion 82 of the upper horizontal support member 28. This channel support is adapted to receive the clamping support arm 85) which is free to move horizontally within groove 82. The clamping assembly is best described and shown in FIGURES 4, 5, and in the alternate embodiment and use in FIGURE 6. Typical usage of the apparatus is in the support of beam forming members, such as beam bottom 84 and beam side members 86 which are adaptable to receive concrete 88 which is shown in section. At one end of clamping arm 80 is side clamp arm 90, while at the other end is clamp member 92 opposed thereto. Each of the clamping arms includes a header portion 94 and 96 respectively. An alignment clamp 98 integrally assembled with arm 80 is adapted to maintain clamp in its fixed position by placement of one or more locking pins N0 in one of the various adjustable positions.

the form' sup-port members.

ares 11s Pin passes through member 90 and a respective opening 93 in the clamping support arm 80. A similar alignment clamp 102 is adapted to maintain side clamping arm 92 in its relative position with respect to clamping support arm 80. Clamping arm 92 includes a multiplicity of horizontal openings 104 which, upon being placed in the locked or clamped position, are aligned with a like opening in the alignment clamp 102 and held by the placement of a wedge pin 105 which is more aptly shown in FIGURE 5.

Adjacent the beam sides 86 and between clamping member 94 and 96 are kickers or spacers 106 and 108 respectively, and which are held in the clamped position as shown for support of beam sides 86.

The view of FIGURE 6 describes an alternate use of the clamping device of this invention as used in vertical wall construction, that is when used to support vertically disposed studding members 86' which form a mold for plicity of points about the vertical studding in order to permit the clamping support arm 80 to pass therethrough. Otherwise, the clamping support arm and its component parts as heretofore described are essentially the same.

FIGURE 1 is illustrative of an over all form and support for multi-story building construction using settable plastic materials such as concrete. The system i easily dismantled for future use without weakening or damaging Basically, the form support members comprise the adjustable T-brace system 20 and the necessary clamping support arm 80, and the clamping cam and handle system comprising components 110 and 112, and linkage system 116 and 118 as described heretofore. Additionally, as shown in FIGURE 1, further supporting members of this invention include an adjustable joist system 126, which includes at least one rectangular conduit member 128 approximately six feet in length within which member 130 is telescopically adjustable and.

movable in accordance with the desired length. Additional member 128 are provided for extension of'the joist supp'ort. At each end of members 128 are vertical support legs 132 to which is attached a base 134, all of which is vertically adjustable within housings 136 formed 4 connecting linkage system 116' and 118; In operation, movement of the jack handle member 112 towards miter block causes follower blocks to engage and force the corner clamping assembly into tight engagement to permit a locking pin 162 to be placed through miter block 160 and a corresponding hole in strap extension 161. The

cam and jack handle system is then removable for use with other corner column clamping devices which may be spaced vertically along the column for additional support. Hence, when it is desired to remove the form, pin 162 is removed, permitting the corner clamp assembly to come apart for use elsewhere. g

A further embodiment of this invention is shown in the views of FIGURESj and 8 wherein the adjustable joist system similar to that described in FIGURE 1 is adapted for use in bridge fioor construction and specifically where I-beam girders are adapted for support of a poured concretefloor, not shown. In that instance, adjustable joist member 172 is adapted to receive and lock in place telescopically adjustable inner member 1174, vertically adjustable leg members 176 are adapted with the adjustable joist for support upon the inner portion of the I-beams 170, as shown. These adjustable supports are held by locking pins 178. Typically, in the construction a longitudinal joist tacking strip 180 permits the tacking of a plywood base portion 182 upon which the concrete can be poured and sup-ported, and readily removed upon removal of pins 178 and the collapse of the adjustable joist system. a g

Although I have shown and described the preferred embodiment of this invention, it will be understood that minor changes in construction combinations and arrangements of the parts may be made without departingfrom the spirit and scope of this invention as claimed.

What is claimed is:

form support comprising, in combination, a base flange and a lower tubular support column vertically supported thereon, an upper tubular support column telescopically adjustable outside of said lower column, a

as a part of members 128 and in some instances at one 7 desired position by a locking pin 138., In actual use the adjustable joist system 126 includes the use of aluminum or other lightweight metal structural material having members 128 approximately six feet in length while the met her 130 will be from seven to eight feet in length for purposes of overlapping within the next extension member 128.

Resting atop the adjustable joist system 126 is a longitudinal Wooden joist member 140 which is vertically supported upon members 130 intermediate members 128 by one or more U-shaped-suppo'rt clamps 142. In use, concrete molding and support pans 144 are attached along horizontal member attached to said upper column at its upper end, a jack lift housing attachable to said lower column, a j'ackliftterminating its upper end with a platform member, said member having a partial circumferential recess of dimension to substantially fit one-half of the periphery of said lower column and yet be buttable against the lower end of said upper column, a jack lift handle pivotal about said housing and engageable with one edge to the longitudinal joist member 140 and along 1 the other edge to a typical beam side 86 or between adjacent adjustable joist systems 126. V

A yet additional embodiment of this invention and construction system includes the use of one or more vertically spaced quick assembly-disassembly clamping assembly 150 for supporting a typical rectangular column form comprising members 152, 153, 154 and 155. The

clamp includes four substantially identical strap members 156 to which miter blocks 158 are assembled as shown to receive the cam acting jack handle system to wit: Follower block 110, jack handle 112 and the attached intersaid jack lift for vertical movement to a desired position,

and vertically 'alignable grooves in said upper and lower columns to receive opposing wedge locking means for interlocking said upper and lower columns at the said desired position. References Cited in the file of this patent UNITED STATES PATENTS 1,013,632 Witthoefit Jan. 2, 1912 1,176,005 Waite Mar. 21, 1916 1,400,109 Wallace Dec. 13', 1921 1,433,830 Lampert Oct. 31, 1922 1,461,426 Lisowski July 10, 1923 1,516,672 Franz et al Nov. 25, 1924 1,590,033 Keller lune 22, 1926 1,622,038 Lamp'er't Mar. 22, 1927 2,528,909 Plumb Nov. 7,, 1950 2,546,537 Cain n; Mar. 27, 1951 2,632,228 Huntington Mar. 24, 1953 2,818,095 St'ahl et a1. Dec. 31, 1957 2,894,312 Jones et a1. July 14, 1959 2,909,253 Hinze Oct. 20, 1959 2,951,564 Meyer Sept. 6, 1960 2,986,183 Jackrnan Q May 30, 1961 FOREIGN PATENTS 801,952 Germany Jan.- 29, 1951 505,025 Italy Dec. 15, 19 54 

